Siemens SIMATIC PCS 7 Function Manual page 83

● The interface for message processing between the active BATCH server and the OS server
● The BATCH clients automatically fail over to the functioning (active) BATCH server. After
In SIMATIC BATCH, the consistency of the databases is achieved by data replication. In this
solution, each of the BATCH servers of a server pair has its own database in which the batch
data stored. The two databases are continuously synchronized.
Setting up a redundant BATCH server
The following configuration shows the basic operating principle of redundant BATCH servers.
The BATCH servers are also connected to the plant bus if SIMATIC BATCH is operated "AS-
based".
Redundancy connection
You need the following components to make the redundancy connection, depending on the
distance to be bridged:
Maximum
distance
100 m
1000 m
Fault-tolerant Process Control Systems (V8.0)
Function Manual, 03/2012, A5E02779471-02
remains available.
the failover, it is possible to control and monitor the process from all BATCH clients.
Required components
● Crossover network cable
● Per server: A free network connection
(see section "Network components (Page 41)")
Fiber-optic cable
Per server:
● A free network connection
(see section "Network components (Page 41)")
● 1 Ethernet cable
● 1 media converter (e.g., SCALANCE X101-1)
Fault-tolerant Solutions in PCS 7
3.7 Solutions for SIMATIC BATCH
Connection
Ethernet connection
Ethernet connection
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